Shall preserve thy going out and thy coming in; shall guard and assist thee in all thy expeditions, and affairs, and actions, either at home or abroad. So this phrase is used Numbers 27:17 Deuteronomy 28:6.
Related Commentaries of Psalms 121:8
Psalms 121:8
8 The LORD shall preserve thy going out and thy coming in from this time forth, and even for evermore.